//省份代码
{
"code":"ASN",
"name":"陕西省",
"url":"/publish/forecast/ASN.html"
}
//城市代码
{"code":"57025",
"province":"陕西省",
"city":"凤翔",
"url":"/publish/forecast/ASN/fengxiang.html"
}
//空气质量
http://www.nmc.cn/f/rest/aqi/57025
{
	"forecasttime":"2020-07-02 22:00",
"aqi":40,
"aq":1,
"text":"优",
"aqiCode":""
}